Acer P5205 manual Setting, English, Set your screen aspect ratio to 43. The function is not, 1234

English

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Setting

Menu Location	Chooses the OSD menu location on the display screen.
	When this function is turned off, the projector will search for
Source Lock	other signals if the current input signal is lost. When this
	function is turned on, it will lock the current source channel
	before you press "SOURCE" on the control panel or remote
	control for next channel.
	Selects a preferred closed captioning mode from CC1, CC2,
	CC3, CC4, (CC1 displays captions in the primary language in
	your area). Select "Off" to turn off the captioning feature.
	This function is only available when a composite video or S-
Closed Caption	Video input signal is selected and its system format is NTSC.
			Set your screen aspect ratio to 4:3. The function is not
			available when the aspect ratio is "16:9" or 16:9 format
			detected under "Auto mode".
	Security
	This projector provides a useful security function for the
	administrator to manage the projector.
	Press	to change the "Security" setting. If the security
	function is enabled, your must enter "Administrator
Security	Password" first before changing the security setting.
			The factory default of "Administrator Password" is
		"1234".

•Select "On" to enable the security function. You have to enter password depending on the "Security Mode". Please refer to "User Password" section for details.

•If "Off" is selected, you can switch on the projector without password.